mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-22 11:13:07 +00:00
185f812c41
Sphinx expects Return: and not @return to indicate a return value.
find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
161 lines
4.5 KiB
C
161 lines
4.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (c) 2015 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*/
|
|
|
|
#ifndef __pch_h
|
|
#define __pch_h
|
|
|
|
#include <linux/bitops.h>
|
|
#define PCH_RCBA 0xf0
|
|
|
|
#define BIOS_CTRL_BIOSWE BIT(0)
|
|
|
|
/* All the supported PCH ioctls */
|
|
enum pch_req_t {
|
|
/* Returns HDA config info if Azalia V1CTL enabled, -ENOENT if not */
|
|
PCH_REQ_HDA_CONFIG,
|
|
|
|
/* Fills out a struct pch_pmbase_info if available */
|
|
PCH_REQ_PMBASE_INFO,
|
|
|
|
PCH_REQ_TEST1, /* Test requests for sandbox driver */
|
|
PCH_REQ_TEST2,
|
|
PCH_REQ_TEST3,
|
|
|
|
PCH_REQ_COUNT, /* Number of ioctrls supported */
|
|
};
|
|
|
|
/**
|
|
* struct pch_pmbase_info - Information filled in by PCH_REQ_PMBASE_INFO
|
|
*
|
|
* @pmbase: IO address of power-management controller
|
|
* @gpio0_en_ofs: Offset of GPIO0 enable register
|
|
* @pm1_sts_ofs: Offset of status register
|
|
* @pm1_cnt_ofs: Offset of control register
|
|
*/
|
|
struct pch_pmbase_info {
|
|
u16 base;
|
|
u8 gpio0_en_ofs;
|
|
u8 pm1_sts_ofs;
|
|
u8 pm1_cnt_ofs;
|
|
};
|
|
|
|
/**
|
|
* struct pch_ops - Operations for the Platform Controller Hub
|
|
*
|
|
* Consider using ioctl() to add rarely used or driver-specific operations.
|
|
*/
|
|
struct pch_ops {
|
|
/**
|
|
* get_spi_base() - get the address of SPI base
|
|
*
|
|
* @dev: PCH device to check
|
|
* @sbasep: Returns address of SPI base if available, else 0
|
|
* @return 0 if OK, -ve on error (e.g. there is no SPI base)
|
|
*/
|
|
int (*get_spi_base)(struct udevice *dev, ulong *sbasep);
|
|
|
|
/**
|
|
* set_spi_protect() - set whether SPI flash is protected or not
|
|
*
|
|
* @dev: PCH device to adjust
|
|
* @protect: true to protect, false to unprotect
|
|
*
|
|
* @return 0 on success, -ENOSYS if not implemented
|
|
*/
|
|
int (*set_spi_protect)(struct udevice *dev, bool protect);
|
|
|
|
/**
|
|
* get_gpio_base() - get the address of GPIO base
|
|
*
|
|
* @dev: PCH device to check
|
|
* @gbasep: Returns address of GPIO base if available, else 0
|
|
* @return 0 if OK, -ve on error (e.g. there is no GPIO base)
|
|
*/
|
|
int (*get_gpio_base)(struct udevice *dev, u32 *gbasep);
|
|
|
|
/**
|
|
* get_io_base() - get the address of IO base
|
|
*
|
|
* @dev: PCH device to check
|
|
* @iobasep: Returns address of IO base if available, else 0
|
|
* @return 0 if OK, -ve on error (e.g. there is no IO base)
|
|
*/
|
|
int (*get_io_base)(struct udevice *dev, u32 *iobasep);
|
|
|
|
/**
|
|
* ioctl() - perform misc read/write operations
|
|
*
|
|
* This is a catch-all operation intended to avoid adding lots of
|
|
* methods to this uclass, of which few are commonly used. Uncommon
|
|
* operations that pertain only to a few devices in this uclass should
|
|
* use this method instead of adding new methods.
|
|
*
|
|
* @dev: PCH device to check
|
|
* @req: PCH request ID
|
|
* @data: Input/output data
|
|
* @size: Size of input data (and maximum size of output data)
|
|
* @return size of output data on sucesss, -ve on error
|
|
*/
|
|
int (*ioctl)(struct udevice *dev, enum pch_req_t req, void *data,
|
|
int size);
|
|
};
|
|
|
|
#define pch_get_ops(dev) ((struct pch_ops *)(dev)->driver->ops)
|
|
|
|
/**
|
|
* pch_get_spi_base() - get the address of SPI base
|
|
*
|
|
* @dev: PCH device to check
|
|
* @sbasep: Returns address of SPI base if available, else 0
|
|
* Return: 0 if OK, -ve on error (e.g. there is no SPI base)
|
|
*/
|
|
int pch_get_spi_base(struct udevice *dev, ulong *sbasep);
|
|
|
|
/**
|
|
* set_spi_protect() - set whether SPI flash is protected or not
|
|
*
|
|
* @dev: PCH device to adjust
|
|
* @protect: true to protect, false to unprotect
|
|
*
|
|
* Return: 0 on success, -ENOSYS if not implemented
|
|
*/
|
|
int pch_set_spi_protect(struct udevice *dev, bool protect);
|
|
|
|
/**
|
|
* pch_get_gpio_base() - get the address of GPIO base
|
|
*
|
|
* @dev: PCH device to check
|
|
* @gbasep: Returns address of GPIO base if available, else 0
|
|
* Return: 0 if OK, -ve on error (e.g. there is no GPIO base)
|
|
*/
|
|
int pch_get_gpio_base(struct udevice *dev, u32 *gbasep);
|
|
|
|
/**
|
|
* pch_get_io_base() - get the address of IO base
|
|
*
|
|
* @dev: PCH device to check
|
|
* @iobasep: Returns address of IO base if available, else 0
|
|
* Return: 0 if OK, -ve on error (e.g. there is no IO base)
|
|
*/
|
|
int pch_get_io_base(struct udevice *dev, u32 *iobasep);
|
|
|
|
/**
|
|
* pch_ioctl() - perform misc read/write operations
|
|
*
|
|
* This is a catch-all operation intended to avoid adding lots of
|
|
* methods to this uclass, of which few are commonly used. Uncommon
|
|
* operations that pertain only to a few devices in this uclass should
|
|
* use this method instead of adding new methods.
|
|
*
|
|
* @dev: PCH device to check
|
|
* @req: PCH request ID
|
|
* @data: Input/output data
|
|
* @size: Size of input data (and maximum size of output data)
|
|
* Return: size of output data on sucesss, -ve on error
|
|
*/
|
|
int pch_ioctl(struct udevice *dev, ulong req, void *data, int size);
|
|
|
|
#endif
|